JM719149-JM719113 bearing: complete specifications & equivalents
The JM719149-JM719113 is a ANSI ABMA 19.2 radial bearing sized 95 x 150 x 35 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 95 mm |
| Outer diameter D | 150 mm |
| Width B | 35 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 199 kN |
| Basic static load rating C0 | 279 kN |
| Limiting speed (mechanical) | 2300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 2190 g |
| Manufacturer designation | NTN 4T-JM719149/JM719113 |
| Standard | ANSI ABMA 19.2 |
| Catalog version | NTN 2203E 2026-09-25 |
| Last verified | 2026-10-01 |
Source: catalog reference (NTN 2203E 2026-09-25) · extracted 2026-10-01
Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN 2203E 2026-09-25); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.com.
Dimensions in inches & 4t-inch-series range
| Bore d | 3.74 in |
|---|---|
| Outer diameter D | 5.906 in |
| Width B | 1.378 in |
| ISO bore code | 49 |
| Radial section height (D−d)/2 | 27.5 mm |
| Smallest bore in 4t-inch-series | 12.7 mm |
| Largest outer diameter in 4t-inch-series | 260 mm |
| Width range across 4t-inch-series | 10.998–77.788 mm |
| Bore position in 4t-inch-series (smallest first) | 112 of 148 |
| Bore above smallest 4t-inch-series size | 82.3 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| JM719149 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the JM719149-JM719113 model number is decoded
For an inch shaft of 95 mm carrying combined radial and thrust load, NTN lists 4T-JM719149/JM719113, a single-row 4T tapered roller set of 199 kN C and 279 kN C0 inside the 150 mm OD cup. Letter prefixes inherited from the inch convention mark the load family: LM reads as light-medium, HM as heavy-medium, LL as extra-light, J-prefixed codes as metric-envelope families — JM719149 sits in the JM metric-envelope family. Two single-row inch sets are normally mounted as an adjusted O or X pair; the 35 mm T of each 4T-JM719149/JM719113 enters the spacer calculation, so the tolerance on assembled width matters as much as the bore fit. Housing fitment sequence for 4T-JM719149/JM719113: press the JM719113 cup square into the 150 mm seat first, then bring the JM719149 cone (on its 95 mm shaft) into adjustment — the two references are separate engineering parts that happen to ship as one set. Contact-pattern check with marking blue: a pattern biased to one roller end means the 95 mm pair is misadjusted and the set will edge-load in service.
Typical equipment & failure modes
Common applications
- heavy truck and bus drive-axle differentials
- plant gearboxes on inch-dimensioned shaft lines
- large conveyor head pulleys in bulk-handling plant
- paper-machine and calender roll supports
Known failure patterns
- rib-face scoring when the thrust share of the combined load exceeds what the cone rib of this size carries
- cup creep and housing fretting when the cup seat is cut too loose for the rotating load
- flaking on one cone only when a bent shaft loads the O/X pair unevenly
- pressed-steel cage pocket wear from roller skid at light radial load and high speed
- fretting corrosion on a loose cone seat that creeps under rotating load
Selection pitfalls — read before you substitute
- Mount the 95 mm cone by induction heating (max 120 °C) and the 150 mm cup with a press sleeve; at 2190 g a cocked ring brinells the raceway directly.
- The J-prefixed JM719149 code belongs to a metric-envelope inch family: its 95 mm bore is a round metric figure, yet the part still follows ABMA cone/cup numbering — do not substitute an ISO 355 metric 302/322 bearing of the same bore without checking OD, T and contact angle.
- Shaft and housing fillets must clear the ring chamfers of JM719149 and JM719113; use undercut shoulders so the rings seat on the face, not on a radius.
- Quote the full JM719149/JM719113 pair at ordering: the JM719149 cone also ships against sibling cups, and a cup from another reference changes the 35 mm assembled width and the rating.
- Do not confuse T (35 mm, the assembled cone-plus-cup width) with the cone width when drawing spacers; an abutment sized to T leaves the cup unseated.
- The 199/279 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-JM719149/JM719113; internal geometry legitimately differs between inch-series makers, so re-verify ratings, adjustment and the exact cone/cup references before substituting another brand on a rated drive.
Frequently asked questions
What are the dimensions and catalogue ratings of NTN 4T-JM719149/JM719113?
4T-JM719149/JM719113 is an inch-series single-row tapered roller bearing to the ABMA boundary plan: 95 mm bore (3.74 in), 150 mm outside diameter and 35 mm assembled width T (5.906 × 1.378 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 199 kN, C0 279 kN, grease limiting speed 2,300 r/min, oil speed 3,100 r/min, mass about 2190 g. It is an open, separable cone/cup set with a pressed-steel cage.
Are the cone and cup of 4T-JM719149/JM719113 interchangeable separately?
Yes — ABMA inch parts are individually interchangeable: the JM719149 cone or the JM719113 cup can be replaced by an identical reference from NTN or another ABMA-dimensioned maker. Pairing the cone with a different cup reference is a different catalogue row: OD, assembled T and the 199/279 kN ratings change with the cup.
What is the difference between 4T-JM719149/JM719113 and a metric ISO 355 tapered bearing?
4T-JM719149/JM719113 follows the ABMA inch boundary plan with cone/cup references; ISO 355 bearings use metric dimension-series numbers (302, 322, …). Even where a metric size looks close to 95×150×35 mm, the envelopes and contact angles differ — the two systems are not drop-in interchangeable; check every boundary value before substituting.
What does the 4T prefix on 4T-JM719149/JM719113 mean?
4T is NTN's tapered roller bearing quality mark, stamped on cone and cup in the factory. It identifies NTN's 4T programme and is not a dimension or variant code, so interchange lists quote the bare JM719149/JM719113 references; the 4T spelling is retained among this page's search aliases.
Why does 4T-JM719149/JM719113 list two speeds, 2,300 and 3,100 r/min?
The lower figure, 2,300 r/min, is the grease-lubricated limiting speed — the mechanical ceiling for the cage, rollers and cone-rib contact. With oil lubrication NTN rates 4T-JM719149/JM719113 at 3,100 r/min because oil removes rib-contact heat better. Real limits still depend on pair adjustment, oil flow and cooling.
Reviewed & verified by the MPN Base engineering desk against source catalog NTN 2203E 2026-09-25 on 2026-10-01. Read our editorial & correction policy.